/**
 * Copyright 2018 人人开源 http://www.renren.io <p> Licensed under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance with the License. You may obtain a
 * copy of the License at <p> http://www.apache.org/licenses/LICENSE-2.0 <p> Unless required by
 * applicable law or agreed to in writing, software distributed under the License is distributed on
 * an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See
 * the License for the specific language governing permissions and limitations under the License.
 */

package com.teorange.magic.bottle.admin.modules.job.utils;

import cn.teorange.framework.core.constant.Constant;
import cn.teorange.framework.core.exception.RRException;
import com.teorange.magic.bottle.admin.modules.job.entity.ScheduleJobEntity;
import org.quartz.CronScheduleBuilder;
import org.quartz.CronTrigger;
import org.quartz.JobBuilder;
import org.quartz.JobDataMap;
import org.quartz.JobDetail;
import org.quartz.JobKey;
import org.quartz.Scheduler;
import org.quartz.SchedulerException;
import org.quartz.TriggerBuilder;
import org.quartz.TriggerKey;

/**
 * 定时任务工具类
 *
 * @author Mark sunlightcs@gmail.com
 * @since 1.2.0 2016-11-28
 */
public class ScheduleUtils {

  private final static String JOB_NAME = "TASK_";

  /**
   * 获取触发器key
   */
  public static TriggerKey getTriggerKey(Long jobId) {
    return TriggerKey.triggerKey(JOB_NAME + jobId);
  }

  /**
   * 获取jobKey
   */
  public static JobKey getJobKey(Long jobId) {
    return JobKey.jobKey(JOB_NAME + jobId);
  }

  /**
   * 获取表达式触发器
   */
  public static CronTrigger getCronTrigger(Scheduler scheduler, Long jobId) {
    try {
      return (CronTrigger) scheduler.getTrigger(getTriggerKey(jobId));
    } catch (SchedulerException e) {
      throw new RRException("获取定时任务CronTrigger出现异常", e);
    }
  }

  /**
   * 创建定时任务
   */
  public static void createScheduleJob(Scheduler scheduler, ScheduleJobEntity scheduleJob) {
    try {
      //构建job信息
      JobDetail jobDetail = JobBuilder.newJob(ScheduleJob.class)
          .withIdentity(getJobKey(scheduleJob.getJobId())).build();

      //表达式调度构建器
      CronScheduleBuilder scheduleBuilder = CronScheduleBuilder
          .cronSchedule(scheduleJob.getCronExpression())
          .withMisfireHandlingInstructionDoNothing();

      //按新的cronExpression表达式构建一个新的trigger
      CronTrigger trigger = TriggerBuilder.newTrigger()
          .withIdentity(getTriggerKey(scheduleJob.getJobId())).withSchedule(scheduleBuilder)
          .build();

      //放入参数，运行时的方法可以获取
      jobDetail.getJobDataMap().put(ScheduleJobEntity.JOB_PARAM_KEY, scheduleJob);

      scheduler.scheduleJob(jobDetail, trigger);

      //暂停任务
      if (scheduleJob.getStatus() == Constant.ScheduleStatus.PAUSE.getValue()) {
        pauseJob(scheduler, scheduleJob.getJobId());
      }
    } catch (SchedulerException e) {
      throw new RRException("创建定时任务失败", e);
    }
  }

  /**
   * 更新定时任务
   */
  public static void updateScheduleJob(Scheduler scheduler, ScheduleJobEntity scheduleJob) {
    try {
      TriggerKey triggerKey = getTriggerKey(scheduleJob.getJobId());

      //表达式调度构建器
      CronScheduleBuilder scheduleBuilder = CronScheduleBuilder
          .cronSchedule(scheduleJob.getCronExpression())
          .withMisfireHandlingInstructionDoNothing();

      CronTrigger trigger = getCronTrigger(scheduler, scheduleJob.getJobId());

      //按新的cronExpression表达式重新构建trigger
      trigger = trigger.getTriggerBuilder().withIdentity(triggerKey).withSchedule(scheduleBuilder)
          .build();

      //参数
      trigger.getJobDataMap().put(ScheduleJobEntity.JOB_PARAM_KEY, scheduleJob);

      scheduler.rescheduleJob(triggerKey, trigger);

      //暂停任务
      if (scheduleJob.getStatus() == Constant.ScheduleStatus.PAUSE.getValue()) {
        pauseJob(scheduler, scheduleJob.getJobId());
      }

    } catch (SchedulerException e) {
      throw new RRException("更新定时任务失败", e);
    }
  }

  /**
   * 立即执行任务
   */
  public static void run(Scheduler scheduler, ScheduleJobEntity scheduleJob) {
    try {
      //参数
      JobDataMap dataMap = new JobDataMap();
      dataMap.put(ScheduleJobEntity.JOB_PARAM_KEY, scheduleJob);

      scheduler.triggerJob(getJobKey(scheduleJob.getJobId()), dataMap);
    } catch (SchedulerException e) {
      throw new RRException("立即执行定时任务失败", e);
    }
  }

  /**
   * 暂停任务
   */
  public static void pauseJob(Scheduler scheduler, Long jobId) {
    try {
      scheduler.pauseJob(getJobKey(jobId));
    } catch (SchedulerException e) {
      throw new RRException("暂停定时任务失败", e);
    }
  }

  /**
   * 恢复任务
   */
  public static void resumeJob(Scheduler scheduler, Long jobId) {
    try {
      scheduler.resumeJob(getJobKey(jobId));
    } catch (SchedulerException e) {
      throw new RRException("暂停定时任务失败", e);
    }
  }

  /**
   * 删除定时任务
   */
  public static void deleteScheduleJob(Scheduler scheduler, Long jobId) {
    try {
      scheduler.deleteJob(getJobKey(jobId));
    } catch (SchedulerException e) {
      throw new RRException("删除定时任务失败", e);
    }
  }
}
